Doh! Screwed up- literally. Need kind words of reassurance!
 

tried changing my rear sway bar links and bushings today, and managed to shear a bolt in half in the process. On of the bolts that holds the U-clamp with the u-shaped rubber bushing was giving me a real hard time coming loose then snapped and half is stuck in the clamp's built-in nut :(

Taking it to the shop tomorrow and hopefully they can drill it out or something to fix it.

Will I be ok to drive on it (gently) with just one bolt holding the clamp on? My fav shop is about 3 miles away.

Should not be a problem at all.